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@ -1,7 +1,7 @@
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heater control circuit for a low power (~40W) proofing oven. the thermistor |
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element is a 10k NTC with B 25/50 constant of 3380K. Setting the trim pot |
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VR1 to read 1.75V sets the hold/max temperature to within 1 degree C of 25C |
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VR1 to read 1.25V sets the hold/max temperature to within 1 degree C of 25C |
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(~75F) |
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the power mosfet is an IRF530N, and as wired, max input and load of the circuit |
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